It's an adaptation of a gag manga, and it shows. There's lots of characters doing or saying all sorts of improbable things, with Natsuki as the 'straight man' who gives a retort. So it's comedy, but most of it isn't very funny -- though there's a few snigger-worthy passages. The characters also frequently break the fourth wall, talking about what they're going to do for the final episode, for instance.
And it's a real budget anime: the visuals just aren't that good, and the animation is very basic too. You can see clearly where the production had to cut corners to stay within budget.
It's not that bad, but it's definately not good either. I'll give it a 6. A simple diversion that does not demand much (or even anything at all) from the viewer.